Chestnut Hill Square Parking Structure, Newton, MA
The Chestnut Hill Square parking structure is a five-story, 167,667 sqft of supported structural space featureing a total-precast concrete structural system and architectural spandrels. “Precast concrete offers the best blend of cost-effectiveness and durability for the New England markets,” explains Mark Aho, principal at McNamara Salvia Inc., the architect/engineer on the project. “For the most part, that is our default material on this type of project.” Working around activity as three other buildings being constructed added challenges, he notes, which precast concrete also helped resolved. “Using precast concrete alleviated site congestion by allowing the components to be cast off-site and delivered for erection when needed.”
Route 105, #84 Bridge, Brighton, VT
Precast concrete NEXT beams were used to speed construction on the #84 Bridge on Route 105 in Brighton, Vt., after Hurricane Irene’s rampage in August 2011 caused the existing structure to fail. With no viable detours, the bridge was scheduled to be closed for only 21 days while the new bridge, complete with precast concrete abutments, wing walls and approach slabs, was constructed. The contractor received a bonus for completing the construction three days early.
The one-span Brighton Bridge features four 71-foot-long, 28-inch-deep NEXT beams. All the precast components were manufactured by J.P. Carrara & Sons, Inc. of Middlebury, VT.
Route 125, #23 Bridge, Hancock, VT
Hurricane Irene wreaked considerable havoc on the East Coast in August 2011, and among its victims were a number of short-span bridges in Vermont. Because several were in isolated areas without viable detours or bypasses, officials chose precast concrete Northeast Extreme Tee (NEXT) girders to speed construction.
“The hurricane caused the bridge to fail, so it was a top priority to be returned to service,” says Kristin Higgins, project manager for the Accelerated Bridge Programs at the Vermont Agency of Transportation. “We wanted to create a prefab bridge that could be lifted into place quickly to ensure we minimized disruptions to traffic.” For this project, four 71-foot-long NEXT beams, 28 inches deep, were used for the one-span bridge.All the precast components were manufactured by J.P. Carrara & Sons, Inc. of Middlebury, VT. (Link)
ABC Applications in Segmental Bridge Construction
Thursday, August 22, 2013 – 1:00 to 2:00 p.m. Eastern
ABC Center at Florida International University (FIU) presents
Featured Speaker: William R. (Randy) Cox, P.E.,
Manager, American Segmental Bridge Institute
Description: Precast concrete segmental bridges, first built in the late 1940s in Europe and in the early 1970s in the U.S., are a long-standing ABC technology that provides solutions for cost-effective, quickly constructed, and aesthetically pleasing designs for both short span and long span applications. This presentation will discuss the advantages of precast segmental superstructure and substructure construction as it pertains to span-by-span, balanced cantilever, and other methods. A brief introduction to the new PTI/ASBI Specification for Grouted Post-Tensioned Structures will also be included.
To register, please visit www.abc.fiu.edu for instructions.
PCI to Present Webinar on Back to the Future: “Relearning Passive Fire Resistant Design”
Presenter: Stephen Skalko, P.E.,
Principal, Stephen V. Skalko, P.E. & Associates, LLCP
August 29, 2013
Buildings relying solely on code-approved sprinklers leave themselves vulnerable to damage to the water supply and other defects. Precast concrete provides significantly enhanced passive fire protection due to its inherent inorganic composition. Containment by compartmentalizing the design with a precast concrete structural system limits damage and allows occupants more time to evacuate the premises.
PCI recently published its updated fire manual including an International Code Council Evaluation Service (ICC-ES) report that allows its use as an alternate to code provisions. This presentation will provide an overview of fire safety design using the updated manual. (Link)
Tentative PCI Webinar 2013 Schedule
October 24 – Artist’s Palette: The Aesthetic Versatility of Precast Concrete
November 21 – The New Sound of IEQ: Indoor Comfort & Acoustic Design
PCI Announces 2013 Big Beam Contest Winners
First Place: Lehigh University (Team 2)
Lehigh, Pa. (Zone 5)
PCI producer: Northeast Prestressed Products LLC: Cressona, PA.
Student Team: Nicola S. Carey, Mustafa O. Furkan, and
2013 PCI Convention and National Bridge Conference Registration
Discover High Performance at the 2013 PCI Convention and National Bridge Conference
In 2013, the PCI Convention and National Bridge Conference is going High Performance. The concepts behind High Performance do
not just apply to precast and structures, they apply to companies and individuals as well. Today, more than ever companies must
be versatile, efficient, and resilient in order to thrive and get ahead. Join us in Grapevine, Texas, and take your company to
the next level. The event offers a number of ways to expand your knowledge, learn about new products and technologies, and
develop vital relationships. It is the premier, must-attend annual event for the precast concrete structures industry. Being
involved in your industry organization can help you discover the high performance potential of yourself, your employees, and your
Note: Hotel Reservation Cutoff Date is August 19th
Visit www.pci.org/convention for more information and to register. The early bird registration
deadline is August 16.
We look forward to seeing you in Grapevine!
FEATURED LEARN AT LUNCH PRESENTATION
High Performance Architectural Precast Wall Systems
High Performance Architectural Precast Concrete wall systems have gained incredible recognition from sustainability
practitioners who herald its durability, energy efficiency, mold/mildew resistance, use of recycled materials,
construction waste, and improved construction IAQ. Due to this recognition, these wall systems are being specified
in K-12 school construction, condominiums, hospitals, university dormitories, science buildings, office complexes,
and many other LEED-certified projects throughout the U.S. Topics that are covered in this workshop include:
appearance options; sandwich-wall design; thermal performance; material R-values and assembly R-values; moisture
management; and LEED credits to which precast concrete can contribute.
Length: 1.0 Hour | Credits: AIA HSW 1.0 LU | PDH: 1.0
PCI Announces New Blast Design Manual
PCI’s Blast-Resistant Design Manual, First Edition (MNL 141-12) is now available as an ePub at www.pci.org/epubs.
This manual describes the basic process of blast-resistant structural design for precast/prestressed concrete components.
It includes calculating blast loads on the component, determining the dynamic response of the component, checking the
response against specified performance criteria, designing the component connections, and checking the component for
adequate shear capacity. The emphasis in this manual is on blast loads from exterior explosions and the dynamic analysis
of blast-loaded structural components idealized as equivalent single degree of freedom systems. These assumptions simplify
the blast-resistant design procedure discussed in this manual, but they apply to many cases of practical interest for
anti-terrorism and force protection design. For more details and purchasing information, visit www.pci.org/epubs.
Curved Precast Concrete Bridges State-of-the-Art Report
This publication details the application of curved precast concrete bridge design, fabrication, construction techniques, and
considerations through the study of twelve related projects and constitutes a state of the art report on this topic. The
document was written and intended to provide bridge owners, designers, fabricators and engineers an up-to-date reference
in developing precast concrete bridge solutions for curved geometric situations. The topics include: Straight Girders chorded
from Pier to Pier, Straight Girders Segments with Splices within the Spans, and Curved Precast Girders. Each case study
reviews project specific information, the structural system selected, construction techniques used and the lessons learned.
For more details and purchasing information, visit www.pci.org/epubs.
Updated Fire Publication Now Available on PCI's e-Publication Site
PCI/ICC's Design for Fire Resistance of Precast Prestressed Concrete, Third Edition (MNL 124-11) is available as an electronic publication at
Seismic Design of Precast/Prestressed Concrete Structures, Second Issue
This new manual assists in the design of precast concrete structures using the seismic design provisions of the 2006
edition of the International Building Code. These provisions are discussed in detail and illustrated with
examples of typical building and parking structures located in regions of low-, moderate-, and high-seismic hazard.
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PCI is proud to offer the first education management system dedicated to the precast concrete and precast structures industries, the PCI elearning Center.
All courses offered through this system satisfy the continuing education requirements of engineers in all 50 states! As an AIA provider, PCI is able to
offer architects approved Learning Units to satisfy their continuing education requirements. Be sure to bookmark us and visit often as we populate this
interface with more and more free, easy-to-access, always-available coursework.
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